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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 29 Jan, 2004
Analysis Summary
----------------
BGP routing table entries examined: 131932
Prefixes after maximum aggregation: 81249
Unique aggregates announced to Internet: 63751
Total ASes present in the Internet Routing Table: 16549
Origin-only ASes present in the Internet Routing Table: 14367
Origin ASes announcing only one prefix: 6646
Transit ASes present in the Internet Routing Table: 2182
Transit-only ASes present in the Internet Routing Table: 69
Average AS path length visible in the Internet Routing Table: 5.0
Max AS path length visible: 19
Illegal AS announcements present in the Routing Table: 7
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1281911140
Equivalent to 76 /8s, 104 /16s and 105 /24s
Percentage of available address space announced: 34.6
Percentage of allocated address space announced: 59.4
Percentage of available address space allocated: 58.2
Total number of prefixes smaller than registry allocations: 58348
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 24325
Total APNIC prefixes after maximum aggregation: 13133
Prefixes being announced from the APNIC address blocks: 22750
Unique aggregates announced from the APNIC address blocks: 13006
APNIC Region origin ASes present in the Internet Routing Table: 1985
APNIC Region origin ASes announcing only one prefix: 592
APNIC Region transit ASes present in the Internet Routing Table: 318
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 134995840
Equivalent to 8 /8s, 11 /16s and 223 /24s
Percentage of available APNIC address space announced: 72.7
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 77347
Total ARIN prefixes after maximum aggregation: 47937
Prefixes being announced from the ARIN address blocks: 59852
Unique aggregates announced from the ARIN address blocks: 20842
ARIN Region origin ASes present in the Internet Routing Table: 8895
ARIN Region origin ASes announcing only one prefix: 3148
ARIN Region transit ASes present in the Internet Routing Table: 847
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 215578272
Equivalent to 12 /8s, 217 /16s and 118 /24s
Percentage of available ARIN address space announced: 71.4
ARIN AS Blocks 1 - 1876, 1902 - 2042, 2044 - 2046, 2048 - 2106
2138 - 2584, 2615 - 2772, 2823 - 2829, 2880 - 3153
3354 - 4607, 4865 - 5119, 5632 - 6655, 6912 - 7466
7723 - 8191, 10240 - 12287, 13312 - 15359
16384 - 17407, 18432 - 20479, 21504 - 23551
25600 - 26591, 26624 - 27647, 29695 - 30719
31744 - 32767
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/8, 198/7, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 23669
Total RIPE prefixes after maximum aggregation: 17285
Prefixes being announced from the RIPE address blocks: 20503
Unique aggregates announced from the RIPE address blocks: 13637
RIPE Region origin ASes present in the Internet Routing Table: 5145
RIPE Region origin ASes announcing only one prefix: 2778
RIPE Region transit ASes present in the Internet Routing Table: 900
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 150307968
Equivalent to 8 /8s, 245 /16s and 132 /24s
Percentage of available RIPE address space announced: 68.9
RIPE AS Blocks 1877 - 1901, 2043, 2047, 2107 - 2136, 2585 - 2614
2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631
6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383
20480 - 21503, 24576 - 25599, 28672 - 29695
30720 - 31743
RIPE Address Blocks 62/8, 80/6, 84/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5435
Total LACNIC prefixes after maximum aggregation: 2220
Prefixes being announced from the LACNIC address blocks: 5042
Unique aggregates announced from the LACNIC address blocks: 3154
LACNIC Region origin ASes present in the Internet Routing Table: 366
LACNIC Region origin ASes announcing only one prefix: 102
LACNIC Region transit ASes present in the Internet Routing Table: 71
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 13
Number of LACNIC addresses announced to Internet: 13993984
Equivalent to 0 /8s, 213 /16s and 136 /24s
Percentage of available LACNIC address space announced: 41.7
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1151
Total AfriNIC prefixes after maximum aggregation: 674
Prefixes being announced from the AfriNIC address blocks: 736
Unique aggregates announced from the AfriNIC address blocks: 569
AfriNIC Region origin ASes present in the Internet Routing Table: 91
AfriNIC Region origin ASes announcing only one prefix: 26
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1766656
Equivalent to 0 /8s, 26 /16s and 245 /24s
Percentage of available AfriNIC address space announced: 10.5
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 937 1120 663 Telstra Pty Ltd
4134 673 2457 116 Data Communications Bureau
4766 410 2904 243 Korea Internet Exchange for "
2907 362 1847 338 SINET Japan
9443 345 69 80 Primus Telecommunications
703 338 372 262 UUNET
17557 320 23 158 Pakistan Telecom
9583 301 44 11 Satyam Infoway Ltd.,
17676 295 4348 38 XTAGE CORPORATION
2764 282 288 236 connect.com.au pty ltd
7474 273 305 215 Optus Communications Pty Ltd
4755 267 130 60 Videsh Sanchar Nigam Ltd. Aut
9929 218 154 30 China Netcom Corp.
9942 217 69 129 COMindico Australia
9800 214 347 55 CHINA UNICOM
9498 181 30 34 BHARTI BT INTERNET LTD.
17642 153 40 112 RequestDSL BGP AS# for Sydney
17964 151 117 58 Beijing Dian-Xin-Tong Network
7633 149 23 40 Software Technology Parks of
4739 146 60 133 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1397 7022 974 AT&T
701 1378 8663 969 UUNET Technologies, Inc.
1239 943 3108 659 Sprint
3356 774 10958 617 Level 3 Communications, LLC
209 707 3508 501 Qwest
18566 686 192 9 Covad Communications
4323 683 544 201 Time Warner Communications, I
6197 683 409 233 BellSouth Network Solutions,
20115 606 331 339 Charter Communications
6198 596 385 231 BellSouth Network Solutions,
7843 512 568 115 Adelphia Corp.
852 503 1124 400 Telus Advanced Communications
7066 503 207 271 Virginia Polytechnic Institut
7132 452 7417 311 Southwestern Bell Internet Se
2386 419 544 221 AT&T Data Communications Serv
690 398 58 268 Merit Network
19029 395 169 252 New Edge Networks
4355 392 323 101 EarthLink, Inc.
376 382 359 114 Reseau Interordinateurs Scien
27364 382 28 23 Armstrong Cable Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 687 2058 572 UUNET - Commercial IP service
3301 334 1174 315 TeliaNet Sweden
3320 280 1972 230 Deutsche Telekom AG
8220 269 410 254 COLT Internet - International
680 241 2027 237 DFN-IP service G-WiN
719 233 288 105 LANLINK autonomous system
1257 223 505 191 SWIPnet Swedish IP Network
13083 215 51 8 Mannesmann Datenverarbeitung
3246 187 421 185 Song Networks
786 175 1826 175 The JANET IP Service
5515 169 762 135 Sonera Solution Autonomous Sy
8708 168 111 160 Romania Data Systems S.A.
25186 168 201 109 France Telecom Transpac's Tra
3215 153 791 70 France Telecom Transpac
5400 141 223 130 BT Ignite European Backbone
3303 136 556 136 Swisscom Ltd
12302 125 18 32 MobiFon S.A.
3269 124 1007 66 TELECOM ITALIA
2856 118 1294 108 BTnet UK Regional network
6746 106 17 95 Dynamic Network Technologies,
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 358 121 66 ImpSat
8151 244 350 126 UniNet S.A. de C.V.
11172 205 77 45 Servicios Alestra S.A de C.V
16814 154 10 5 NSS, S.A.
6503 139 220 93 AVANTEL, S.A.
7303 138 51 29 Telecom Argentina Stet-France
6505 132 90 92 Global One Communicaoes Ltda
6147 124 78 20 Telefonica Del Peru
11340 107 3 31 Red Universitaria Nacional
15311 78 18 38 Telefonica Empresas
6535 77 5 19 Chilesat Servicios Empresari
4270 71 18 9 Red de Interconexion Universi
11992 68 25 29 Integrated Systems
7080 66 4 2 Electronica y Comunicaciones
11311 66 7 22 Sinectis S.A.
27699 62 168 15 TELECOMUNICACOES DE SAO PAULO
10292 61 6 28 TELECOMMUNICATIONS OF JAMAICA
1916 59 247 39 Fundacao de Amparo a Pesquisa
7738 59 218 13 Telecomunicacoes da Bahia S.A
14420 59 4 26 ANDINATEL S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 249 632 218 The Internet Solution
5536 104 8 3 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 90 272 80 The Internetworking Company o
2561 58 6 3 Egyptian Universities Network
11845 36 9 11 Data Pro Business Online
3208 33 2 1 ARN Network
16637 26 9 19 Johnnic e-Ventures
5713 24 93 22 Telkom SA Ltd
9129 24 3 4 UUNET Kenya
24835 23 18 6 RAYA Telecom - Egypt
6713 22 38 9 Itissalat Al-MAGHRIB
12455 22 4 2 Jambonet Autonomous system
8524 18 2 4 AUCEGYPT Autonomous System
10798 18 1 12 Standard Bank of South Africa
15706 16 2 3 Sudatel Internet Exchange Aut
12258 15 3 10 Vodacom Internet Company
17148 14 1 8 First National Bank
2609 12 10 3 Tunisia BackBone AS
8346 12 6 12 SONATEL-AS Autonomous System
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 686 677 Covad Communications
4134 673 557 Data Communications Bureau
4323 683 482 Time Warner Communications, I
6197 683 450 BellSouth Network Solutions,
701 1378 409 UUNET Technologies, Inc.
7843 512 397 Adelphia Corp.
6198 596 365 BellSouth Network Solutions,
27364 382 359 Armstrong Cable Services
22909 334 316 Comcast Cable Corporation
5668 325 309 Century Telephone
22773 333 301 Cox Communications, Inc. Atla
6140 358 292 ImpSat
4355 392 291 EarthLink, Inc.
9583 301 290 Satyam Infoway Ltd.,
1239 943 284 Sprint
1221 937 274 Telstra Pty Ltd
376 382 268 Reseau Interordinateurs Scien
20115 606 267 Charter Communications
9443 345 265 Primus Telecommunications
17676 295 257 XTAGE CORPORATION
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65412 PRIVATE 64.70.42.0/24 3561 Cable & Wireless USA
64198 RESERVED 192.107.195.0/24 22767 NASA Earth Science D
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
64198 RESERVED 198.10.49.0/24 22767 NASA Earth Science D
64512 PRIVATE 204.70.1.0/24 3561 Cable & Wireless USA
23861 UNALLOCATED 210.93.46.0/24 3786 DACOM Corporation
23861 UNALLOCATED 210.93.47.0/24 3786 DACOM Corporation
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 568 DISO-UNRRA
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
192.43.230.0/24 4738 South Australian Academic Res
192.44.0.0/19 702 UUNET - Commercial IP service
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 568 DISO-UNRRA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:4 /10:6 /11:15 /12:58
/13:105 /14:281 /15:501 /16:7547 /17:1862 /18:3449
/19:8890 /20:9229 /21:6674 /22:9487 /23:11028 /24:72041
/25:188 /26:296 /27:173 /28:28 /29:5 /30:37
/31:0 /32:9
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 669 686 Covad Communications
6197 532 683 BellSouth Network Solutions,
7018 507 1397 AT&T
6198 445 596 BellSouth Network Solutions,
702 417 687 UUNET - Commercial IP service
701 397 1378 UUNET Technologies, Inc.
7066 397 503 Virginia Polytechnic Institut
3356 395 774 Level 3 Communications, LLC
20115 386 606 Charter Communications
27364 375 382 Armstrong Cable Services
690 361 398 Merit Network
1239 330 943 Sprint
5668 288 325 Century Telephone
19029 260 395 New Edge Networks
25844 244 244 Skadden, Arps, Slate, Meagher
4766 237 410 Korea Internet Exchange for "
3320 228 280 Deutsche Telekom AG
6386 220 246 bellsouth.net, inc.
6517 219 243 Yipes Communications, Inc.
4355 215 392 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:766 13:1 15:6 16:1 17:3
20:7 24:849 32:82 38:44 40:26 44:2
55:1 56:1 57:13 61:358 62:455 63:1819
64:1823 65:1845 66:2280 67:261 68:590 69:376
80:454 81:202 82:76 128:143 129:263 130:73
131:80 132:16 134:178 135:16 136:128 137:115
138:146 139:40 140:157 141:135 142:104 143:49
144:83 145:39 146:289 147:74 148:300 149:85
150:122 151:61 152:214 153:60 154:1 155:131
156:66 157:49 158:135 159:144 160:46 161:51
162:368 163:70 164:332 165:171 166:105 167:219
168:177 169:96 170:304 171:8 192:5519 193:2534
194:2007 195:1296 196:517 198:3637 199:2815 200:2981
201:7 202:4355 203:5415 204:3025 205:2009 206:2271
207:2591 208:2439 209:2887 210:1022 211:418 212:898
213:1000 214:23 215:25 216:3370 217:816 218:118
219:82 220:158 221:18 222:1
End of report
